/*
 * JaLingo, http://jalingo.sourceforge.net/
 *
 * Copyright (c) 2002-2006 Oleksandr Shyshko
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package uwncorrector.centre.gui.mediator;

import uwncorrector.centre.util.assertions.Arguments;

import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public abstract class AListBoundMediator {
    protected JList list;
    protected JComponent component;

    public AListBoundMediator( JList list, JComponent component ) {
        Arguments.assertNotNull( "list", list );
        Arguments.assertNotNull( "component", component );

        this.list = list;
        this.component = component;

        list.addListSelectionListener( new NestedListSelectionListener() );

        updateComponent();
    }

    protected abstract void updateComponent();

    private class NestedListSelectionListener implements ListSelectionListener {
        public void valueChanged( ListSelectionEvent e ) {
            if ( !e.getValueIsAdjusting() ) {
                updateComponent();
            }
        }

    }
}
